Stastics
posted by Mary on .
When we convert xvalue to z score and use Standard Normal distribution, which of the following statements is true?
a) The mean of zscore is zero and standard deviation of the zscores is the same as
the standard deviation of original data
b) The mean and standard deviation of the zscores is the same as the mean and standard deviation of original data
c) The mean of the zscores is 0 and the standard deviation of zscores is 1
d) The mean and the standard deviation of zscores will be both zero

c) The mean of the zscores is 0 and the standard deviation of zscores is 1